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Patented June-:22, 1880.

l 'Z5/m @MW mf /Wg NJETERS PHGTO-LITMOGRAPMEE WASHXNGYON. D. C.

UNITED STATES PATENT OFFICE.

ALFRED T. HEYMANN, OF HAMBURG, GERMANY.

EXTENSION-TABLE.

SPECIFICATION forming part of Letters 4Patent N o. 229,128, dated .Tune22, 1880. Application filed May 20, 1879. Patented in Germany November3, 1877, and in England November 26, 1873.

To all whom it may concern:

p Be it known that I, ALFRED THEoDoE HEY- MANN,of the city of Hamburg,Germany, have invented certain new and uset'ullmprovements inExtension-Tables, for which were granted British Letters PatentdatedNovember26,1878, and numbered 4,818, and also German Letters Patentdated November 3, 1877-, and numbered 1,040, and of which the followingis a description, reference being had to the accompanying drawings,forming part of this specification.

rIhis invention consists in the combination, with an extension-tableconstructed with top sections and a series of longitudinal bars or rodsconnected with the slides by cross-bars, of a series of double leaveshinged in pairs and arranged one below the other, each pair of leavesbeing supported by and sliding on the said longitudinal bars or rods.

It also consists in the combination, with table-top sections, ot' acatch or stop of novel construction, which will be fully hereinafterdescribed, for locking and holding the sliding sections in position andfor allowing of their being successively drawn out as the table isextended'.

In the accompanying drawings, Figure 1 represents a plan view of anextension-table, showing the top of the table as open and its slides orsliding portions as extended, but with the folding or extension leavesstill within the frame of the table, and before they are unfolded andadjusted to form the extended table-top. Fig. 2 is a partial transversesection, upon a larger scale, through the upper or frame portionof thetable on the line y y, Fig. 1; and Fig. 3, a full transverse section ofthe said table when closed. Fig. 4 is a perspective view of one of theslides, in part, with a catch or holding device applied to the same forholding it in position while the other slides are being extended. Fig. 5is atransverse section of an automatic catch applied to the slides andtop of the table, and Fig. 6 is a plan view of the catch.

A, B, and C indicate table-top sections, of

. which there may be two, three, or more, to receive between them, whendrawn apart, a varyin g number of folding or extension leaves, accordingto the length of table required 5 but in Fig. l of the drawings onlythree of such table-top sections are shown--thatis, two end sections, AB, and one intermediate section, C, with attached slides D, E, and F onop posite sides of the table. to correspond, and two sets of folding orextension leaves, G G', on either side of the intermediate section, G,when the table is extended. The end sections, A B, to which the innerand outer side slides, D E, are attached, have the table -legs L Isecured to them. The slidesD E Fare constructed with longitudinaltongues and grooves to provide for the support of said slides and theirmovement one within or outside ofthe other, as in other extensiontables.

When the table is closed, as shown in Figs. 2 and 3, then the severaltop sections (which will be indicated by three letters, A B C) form thetable-top proper; but when said table is open or extended, as shown inFig. l, then spaces are left between said sections A B C for theadjustment of the folding or extension leaves G G to a level with saidtopsections, to form a continuous and extended table-top. Said leaves,when not in use, are adjusted to occupy positions inside of the frame orsides and slides of thetable, beneath the top of the latter, whenclosed, as shown in Figs. 2 and 3; but, whether in use or out of use,they are always attachments to the table. Thus said leaves, each ofwhich is composed of' two folding sections, G G', hinged together as atb, are suspended by arms c on their upper sections, G, to freely turn onlongitudinally-arranged rods J, Awhich aresupported by cross-bars K,connecting the opposite side slides, D ,D or E E, to allow of saidleaves being turned and brought into a position level with the tabletopwhen required to be used.

L is another longitudinallyarranged rod, supported bythe same cross-barK, attached to the same pair of slides for the lower section, Gf, ofeach extension-leaf to rest upon when not in use, and folded away withinthe frame'of the table beneath its top, and the several rods J and L ofeach set of leaves are arranged at such different elevations relativelywith each other that when the extension-leaves are folded and the tableis closed the several leaves or intermediately-disposed sets of leavespass or take position one under or over the other, as shown in Figs-2and 3. y

The extension-leaves G G may be arranged,

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either singly or in sets of two or more, between either two adjacenttable-top sections.

Referring to Fig. l, which shows the tabletop opened and the side slidesdrawn out, but the extension-leaves G G as still folded and within theframe or upper side portion of the table, the following is the mode ofadjusting said leaves when it is required to bring them level with thetable-top: Each leaf or combined upper and lower sections, Gr G', isswung or turned over for half of a revolution, or thereabout, by itsupper section, G, on the rod J, till the upper section, G, rests on theslides or sliding portions of the frame nearest to the rod J. The hingedsections G Gr are then opened and caused to rest on the top of theslides on opposite sides of the table, respectively, as the loose leavesor boards in other extension-tables are supported, after which thetable-top. sections are pushed toward each other, holding the openedextension-leaves fast between said sections, with which they may engageby dowelpins.

The intermediate section or sections of the table-top may, if desired,also be provided with legs. Furthermore, the opening of the table, aswell as the closing of it, may be effected either by hand direct or bythe intervention of one or more screws. or other suitable mechanicalmeans.

Reference will next'be made to Figs. 4, 5, and 6 of the drawings, whichillustrate catches or holding devices applied to the slides of the frameof the table, by means of which one pair of slides after the other iscaused to fully open as the table is drawn out. Fig. 4 represents aself-closing spring-hook, M, of which there may be any number, fastenedto the inner sides of the frame underneath the table-top, and arrangedto enga-ge with an eye, g, of the staple N, fastened to the ends of onepair of the slides. By pressing with the hand on the hooks M ot' onepair of slides the latter will be liberated to bevextended. It ispreferred, however, to use an automatic means for holding or controllingthe several slides, so that one pair after another is opened or extendedin succession. Figs. 5 and 6 show one modification of such automaticmeans, and in which R S is ametal hinge, one plate, R, of which isfastened by means of screws to the under side of one of the tabletopintermediate sections, while the other or movable plate, S, is providedwith two projections, h z'. The one, h, of these projections nearest tothe joint 7c of the hinge is arranged to move Within or along a slot orgroove, I., in the upper surface of one slide, D, and the other or outerprojection, z', arranged to catch in a hole, m, in the next slide F,which is accordingly held from independently moving, or is held in astationary relation with the table-top While the projection 71, movesfreely in the groove l. Near the end of the slide D said groove lgradually rises to the level of the npper surface of said slide, wherebythe projection h, riding up the rising end of the groove, lifts. themovable plate S of the hinge. This causes the outer projection, z', asthe one slide D is fully drawn out, to be lifted out from the hole m inthe slide F, and so disengages the latter from the table-top. The slideF isl then at libertj7 to be fully drawn. out, and by a similar catch orholding device applied to the slides E and F the slide F may be keptclosed until the slide E has been fully drawn out, and so on for anynumber of slides.

I am aware that an extension-table has been constructed in which 'theleaves used to enlarge the table have been hinged together in the frameof the table and supported bypivots attached to one of the table-topsections, so that when the table-top is extended said hinged leaves canbe swung out on their pivots a'nd lie in a horizontal position on thetable-frame, and such, broadly, I therefore disclaim.

I do not claim the combination, with an extension-table constructed withtop sections and attached slides and provided with longitudinal barsconnected to the slides by cross-bars Iand arranged parallel with thesaid slides, of eX- tension-leaves hinged together at one edge andsupported by and sliding on one of the lon gitudinal bars.

I claiml. The combination, with an extension-table constructed with topsections and a series of longitudinal bars or rods, J L, connected withthe slides by cross-bars K, of a series of double leaves hinged in pairsand arranged one below the other, said pairs being supported by and IOOsliding on the longitudinal bars, substantially as and for thre purposedescribed.

2. rIhe combination, with the table-top sections, of anautomatica]ly-operating catch or stop for locking or holding the slidingsections in position, and to provide for said sections beingsuccessively drawn out, composed of a hinge, R S, having one ot' itsleaves fast to one of said sections and its other leaf or plate providedwith projections h i, arranged to tit a groove, l, and a recess, m, inadjacent slides, substantially as described.

ALFRED THEODOR HEYMANN.

Witnesses:

J. ENGEL, FR. REINGKE.

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